OAKLAND -- BART police have located the person who walked into the Transbay Tube Sunday evening, and trains are again moving through the tube.

The unidentified person was found on a walkway in the tube around 7:43 p.m., according to BART police Lt. Tyrone Forte. The tube was reopened around 8:15 p.m., and the system is recovering from major delays.

The incident began at 6:40 p.m., when BART operators monitoring surveillance cameras saw the person head east into the tube from the Embarcadero station in San Francisco, Forte said. The person did not appear to have "malicious intent," according to BART spokesman Jim Allison, though Allison did not elaborate on why the person walked into the tube.

BART reported that there were delays to trains on the Pittsburg/Bay Point, Dublin Pleasanton, SFO, Daly City and Millbrae trains.